High-Speed Response Non-Isolated POL DC-DC Converter 9.5A BSV Series

Transcription

1 BSV Series is a small ( mm), 3.35W output power step-down DC-DC converter. With ultra-low output voltage from 0.8V, it can support the latest FPGA, DSP, ASIC applications. High efficiency and ultra-high-speed response with synchronous rectification have been achieved along with space-saving without external parts. This product will exceed your expectations in all aspects. Features Output Voltage Accuracy ±3.0% Amazingly miniaturized Ultra-high Efficiency 92% Operating Temp Range -40ºC to +85ºC Ultra Compact, High Power Density High Reliability, High Performance Non-isolated type Converter Use of the Latest Power-IC Built-in Over Current Protection Circuit Synchronous rectification ON/OFF Control RoHS Compliant High-speed Response Short-circuit, Over Current Protection Circuit External Capacitor Not Required Adjustable Output Voltage Heat Sink Not Required DIP, SIP Package Model/Rating Table Models Input V Output V Output I Line Reg. Load Reg. Ripple Noise Efficiency Package BSV Series Vdc Vdc A %(typ.) %(typ.) mvpp(typ.) %(typ.) BSV-3.3S9R5 BSV-3.3S9R5D 5.0V (3.0 to 5.5) 3.3V (0.8 to 3.3) 0 to SIP DIP Note : Unless otherwise specified, measured at input voltage 5.0V, output voltage 3.3V, rated output current and ambient temperature 25ºC±5ºC. Note 2: Efficiency is measured at input voltage 5.0V, output voltage 3.3V, rated output current and ambient temperature 25ºC±5ºC. Note 3: Potential difference of 0.7V or more is required between input voltage and output voltage. Vin(V)-Vo(V) 0.7V Note 4: Ripple noise is measured at 20MHz bandwidth. Note 5: Depending on the ambient temp. conditions, temperature derating and air flow cooling may be required. Specifications Table 2 Input voltage range Refer to Table Rated input voltage 5.0V Rated output voltage 3.3V Output voltage initial setting 3.3V (When Trim pin is open) Adjustable output voltage range Refer to Table Output voltage accuracy ±3.0% (±0.099V) Line regulation Refer to Table (Rated output, input voltage varying in the range of Table ) Load regulation Refer to Table (Rated input/output voltage, load varying from 0 to 00%) Temp. regulation ±0.02%/ºC typ. (Rated input/output, operating temp varying from -40ºC to +55ºC) Ripple noise Refer to Table (Rated input/output, measurement frequency bandwidth 20MHz) Efficiency 92% typ. (Rated input/output, refer to Table ) Turn-on Rise time.0ms typ. (Resistance load) Max. output load capacity 0000µF max. Over current protection Yes Output over voltage protection None Remote ON/OFF control Yes P-Good output Yes (Only BSV-3.3S9R5D) Operating temp range Operating temperatures -40ºC to +85ºC (Refer to temp derating described separately) Storage temp range Storage temperatures -40ºC to +85ºC Humidity range 20% to 95% R.H. (Max. wet bulb temp 35ºC with no condensation) Storage conditions Below 30ºC/60% R.H. before mounting the converter Cooling conditions Refer to temp derating shown separately Vibration 5 to 0Hz total amplitude 0mm (3 directions, hour each), 0 to 55Hz acceleration 2G (3 directions, hour each) Impact Acceleration 20G (3 times for each of 3 directions), Impact time ±5ms Weight Outer dimensions 5g typ. SIP type : W=24.0 L=33.0 H=6.0 (mm) (For dimensional details, refer to the shape and dimensions shown separately) DIP type : W=22.25 L=33.0 H=7.0 (mm) (For dimensional details, refer to the shape and dimensions shown separately) * The above specifications are provided with rated value, unless otherwise specified. * The contents provided in this datasheet may be changed at any time without prior notice. Bellnix DC-DC Converter

2 . Scope These specifications shall apply to the DC input, non-isolated type DC-DC converter BSV-3.3S9R5 Series 2. Model/Rating Model name Rated input voltage Rated output Shape Remarks BSV-3.3S9R5 DC5.0V 3.3V, 9.5A SIP BSV-3.3S9R5D DC5.0V 3.3V, 9.5A DIP Unless otherwise mentioned in these specifications, input shall be rated input, output shall be rated output, and ambient temperature shall be 25ºC±5ºC. 3. Environmental conditions 3- Temperature range In operation -40ºC to +85ºC (Derating required) In storage -40ºC to +85ºC 3-2 Humidity range In operation 20 to 95% R.H. (However, max. wet bulb temperature 35ºC, no condensation) In storage 20 to 95% R.H. (However, max. wet bulb temperature 35ºC, no condensation) Note) For storage before mounting, store in a place below 30ºC and 60% R.H. 4. Specifications & Standards This product is RoHS compliant. 4- Input characteristics Item Specifications & Standards Conditions BSV-3.3S9R5 BSV-3.3S9R5D Input voltage +3.0 to 5.5V (Rating 5.0V) * Input current 7A typ. 7A typ. Upon rated input and rated output Standby current.0ma max. Vin=5.0V, when short-circuiting On/Off pin and * Input voltage to be set higher than output voltage by 0.7V or more. (Vin 4.0V when Vout=3.3V) 2

3 4-2 Output characteristics and functions Item Specifications & Standards Conditions BSV-3.3S9R5 BSV-3.3S9R5D *2, *3 Rated output 3.3V voltage Output voltage 3.3V±3% (±0.099V) accuracy Adjustable output 0.8V to 3.3V By external resistor voltage range Output current 0 to 9.5A Derating required Line regulation 0.5% typ..0% max. Input voltage varying from 4.0 to 5.5V Load regulation 0.5% typ..5% max. Load varying from 0 to rating Temperature regulation ±0.02% / ºC typ. Temperature varying from -40 to +55 ºC Efficiency 92% typ. (Io=9.5A) 94%typ. (Io=6A) Upon output of rated current Ripple noise 30mVp-p typ. 00mVp-p max. BW=20MHz Over current Operate at 05% or above, auto restart protection type circuit Over voltage None protection circuit Under voltage lock Yes out Activation voltage: 2.84V±0.V Deactivation voltage: 2.78V±0.V ON/OFF control ON when open (2.6V or more) Upon input of 3.3V OFF when short (0.65V or less) ON when open (3.75V or more) OFF when short (0.9V or less) Upon input of 5.0V P-Good threshold ±72mV (58 to 86mV) When Vout <.2V voltage ±6.% (4.8 to 7.%) When Vout.2V P-Good low level 0.4V max. Sink current 4mA max. voltage Turn-on Delay Upon activation by input voltage:.8 to 2.8ms Upon activation by On/Off pin: 40 to 00μs Turn-on Rise.0ms typ. Resistance load P-Good blanking time 4ms typ. Upon activation only Max. output 0000μF max. capacitive load *2 With the measurement circuit of 4-3, *3 Unless otherwise specified, measured at 5.0V input voltage, 3.3V output voltage, 9.5A output current, and 25ºC±5ºC ambient temperature. 3

4 4-3 Measurement circuit Vin A V 2,3,4 (23) +Vout (NC) BSV-3.3S9R5 シリーズ Series (P-Good) (NC) On/Off Trim 9,0, (3,4,5) (22,24) V A Load 5,6,7,8 R SW Open =ON R: R:Vout Down Down Setting 設定抵抗 Resistor Short=OFF Pin :Pin No.3, 番号 4, :3,4,5,22,23,24 5, 23, 24 are for はDIP 型のみ type only 同軸ケーブル Coaxial cable : 50Ω.5m Rx: 5Ω Cx: 0.μ F Cx Rx Oscilloscope オシロスコ-フ (OSC) オシロスコープ Oscilloscope ( リップル (Measurement ノイズの測定 of ripple noise) ) 5. Block diagram 2,3,4 POWER IC L +Vout 9,0, (P-Good) (23) P-Good Vfb On/Off On/Off control Vref Trim 5,6 7,8 4

5 Output current [A] Output current [A] High-Speed Response Non-Isolated POL DC-DC Converter 6. Temperature derating The product requires placement on PCB with good airflow. If this product is to be used in an ambient temperature of +25ºC and over, implement the following temperature derating before use. 4 Test conditions 通電条件入力電圧 5.0[V] 出力電圧 3.3[V] Input voltage 5.0[V] Output voltage 3.3[V] BSV-3.3S9R5 temperature derating : 風速 2.0[m/s] : 風速.0[m/s] : 風速 0.0[m/s] Wind velocity Wind velocity Wind velocity 出力電流 [A] Ambient temperature [ºC] 周囲温度 [ ] BSV-3.3S9R5D temperature derating 通電条件 Test conditions 入力電圧 5.0[V] Input voltage 5.0[V] 出力電圧 Output 3.3[V] voltage 3.3[V] 4 Wind : velocity 風速 2.0[m/s] : Wind velocity 風速.0[m/s] Wind : 風速 0.0[m/s] velocity 出力電流 [A] Ambient 周囲温度 temperature [ ] [ºC] 5

6 7. Outer dimensions and description of pins 7- Shape and dimensions of BSV-3.3S9R5 (SIP type) 33max 0.5 P2.54 = Shape and dimensions of BSV-3.3S9R5D (DIP type) 33max 24 C/L 3 2.5(+,-0.5) 24max 3.5 ± typ ± max 4.0typ Pin Function on/off 2 Vin 3 Vin 4 Vin Vout 0 Vout Vout Trim Pin Function on/off 2 Vin 3 Vin 4 Vin Vout 0 Vout Vout Trim 3 NC 4 NC 5 NC 22 NC 23 P-Good 24 NC 0.5 P2.54 = max. 3.5± Display, dimensional tolerance, etc. Unit: mm Dimensional tolerance (unless specified) ±0.5 Weight = 5g typ. Lot No. display: ()(2)(3) () The last digit of A.D. (2) Manufacturing month (Oct/Nov/Dec = O/N/D) (3)Production code (may not be indicated) 6

7 8. Usage information 8- Standard connection diagram 2,3,4 9,0, +Vout Vin + C (23) (P-Good) On/Off BSV-3.3S9R5 シリーズ Series Trim C2 Load 5,6,7,8 R SW Open=On Short=Off R: Vout Down 設定抵抗 R: Vout Down Setting Resistor Note : Keep ON/OFF pin open when not using ON/OFF control. Note2 : Keep Trim pin open when not using adjustable output. Note 3: P-Good (23pin) is a function for BSV-3.3S9R5D (DIP type) only. Recommended capacitor C = 0μF to hundreds of μf C2 = 0μF to 200μF typ. 0000μF max. C: Not required as long as impedance is very low and lines between side and the converter are connected thick and short. For high impedance, adding a capacitor of low ESR such as an organic semiconductor solid capacitor or a multi-layered ceramic capacitor is recommended. C2: Not required due to an internal output capacitor. A multi-layered ceramic capacitor placed on the load side will be recommended to satisfy electrical characteristics (to reduce ripple noise). 7

8 8-2 Turn-on Rise characteristics Amount of start-up time required for activating output voltage and P-Good signal after meeting start-up conditions shall be as illustrated in the following figure. Note ) Apply Vin of the converter at the speed faster than 5V/s. Input voltage 入力電圧 起動開始電圧 Start-up voltage ON/OFF pin on/off 端子 Start-up voltage 起動開始電圧 出力電圧 Output voltage P-Good 端子電圧 P-Good pin voltage Turn-on Delay 2.2ms typ. Turn-on Rise.0ms typ. P-Good blanking time 4ms typ. Turn-on Rise.0ms typ. P-Good blanking time 4ms typ. * In the measurement circuit of ON/OFF Control The ON/OFF Control function enables users to control ON/OFF of the output voltage without inputting or cutting it off. On/Off pins are connected inside to pin with a 22kΩ resistor. Leave the On/Off pin open when ON/OFF Control is not used. Between On/Off pin (No. pin) and (No.5 to 8 pin) Open Output ON Short (0 to 0.9V 0.3mA max.) Output OFF or 2,3,4 On/Off 22kΩ 5,6,7,8 8

9 8-4 Adjustable method for output voltage Keep Trim pin (pin) OPEN, when using output voltage at 3.3V without adjustment. Output voltage may be adjusted between 0.8 and 3.3V by connecting a resistor between Trim pin (pin) and pin (5 to 8pin). Wiring for Trim pin should be short and straight preferably when using adjustable output voltage feature. If noise appears on the pin, it causes mal-function. The below formula should be referred for external resistance. It is important to check output voltage and adjust resistance in an actual device. When setting output voltage between 0.8V to 3.3V R2 R4 Vout Rx R3 (Ω) R R2 R4 I R2 Vout R=5Ω, R2=82Ω, R3=24kΩ, R4=94.3kΩ, I= mA, Vout=Desired output voltage (V) e.g. Desired output voltage (V) Rx calculated value (kω) 3.3 OPEN (270+) 2.0.(0+.) (82+7.5) (5+3.6) (5+2) I R2 R4 R R3 5,6,7,8 +Vout 9,0, Trim Rx 9

10 8-5 P-Good pin Output state of the converter may be obtained by using P-Good pin. This pin is pulled up internally to pin with 47kΩ resistor. When output voltage (+Sense pin voltage) goes out of the converter s pre-set range, P-Good pin becomes low. Vout <.2V : Output voltage-set voltage 72mV typ. -> High Vout.2V: Output voltage-set voltage 6.% typ. of set voltage -> High However, even if the above conditions are fulfilled, output voltage may decrease to Low under the following circumstances. Potential difference between input and output: Vin - Vout < 0.7 Input voltage less than 3V Output current in over current state IC s junction temp exceeding 50ºC typ. 2,3,4 P-Good 23 47kΩ 5,6,7,8 9. Protection against reverse connection for input power supply (example) This product is a DC-DC converter with non-isolation between input and output to have a positive polarity step down to a positive polarity. This product will be damaged if erroneously connected with reverse input polarity. To cope with possible reverse connection, add a protection circuit as shown in the following figure. The following is an example using a fuse and a diode. FUSE 2,3,4 9,0, +Vout D BSV-3.3S9R5 on/off シリース Series Trim Load 5,6,7,8 0

11 0. Over voltage protection circuit (example) This product has no built-in function for over voltage protection. If the product is damaged for any reason, DC input voltage will be output as is. To prepare for the damage by over voltage mode, add an input cutoff circuit as shown in the following figure. FUSE +Vout 2,3,4 9,0, SCR on/off BSV-3.3S9R5 シリース Series Trim Over 過電圧 Voltage 検出回路 Detection Circuit Load 5,6,7,8 Note : ON/OFF control does not function in case of overvoltage mode damage. Note 2: ON/OFF function on the power supply side can be used, if any. Note 3: Allow enough capacity for DC power supply for a fuse to blow.. Mounting conditions Observe the following conditions for soldering temperature and time as well as for the storage before mounting. Flow mounting is not possible for this product. Observe the following conditions for soldering temperature and time. ) Soldering iron 340 ºC to 360 ºC Within 3 seconds 2) Dip solder bath 240 ºC to 260 ºC Within 0 seconds, Vibration and impact tests Vibration: 5 to 0Hz Total amplitude 0mm, 0 to 55Hz Acceleration 2G (3 directions, hour each) Impact : Acceleration 20G (3 directions, 3 times each) Duration ±5ms 3. Cleaning This product is not for immersible cleaning. Use of no-clean flux is recommended. If cleaning is absolutely necessary, using a brush only, hand-wash the solder surface with Isopropyl alcohol (IPA). After cleaning, allow sufficient drying before use.

12 4. Precautions for use To ensure user s safety, check specifications before using the product and always observe the following precautions for use. This product is intended for use in general electronics equipment (office equipment, communication equipment, measurement equipment). Do not use the product for medical equipment, nuclear equipment, trains, etc., whereby human life or property may be directly affected by damaged product. Consult with us for any use other than for such general electronics equipment. This product is not suitable for serial or parallel operation. Do not use connectors and sockets for mounting the product. Contact resistance may have an adverse effect on the performance. Use the soldering method for mounting on the printed circuit board. This equipment has a built-in over current protection circuit but avoid a prolonged short circuit which may lead to failure. This product may be damaged if used under nonstandard electrical conditions or nonstandard environmental conditions including temperature. Ensure use within the standards. Avoid using this product in a place that generates corrosive gas or is dusty. This product may be damaged by static electricity. Make sure that the workplace is guarded against static buildup and static electricity on operators by use of proper grounding. A fuse mechanism is not built in this product. Connect a fuse to +input line to guard against excessive input current under abnormal circumstances. Allow enough capacity for power supply for a fuse to blow. This product has no build-in function for over voltage protection. If over voltage occurs due to anomalies in the module, input voltage is output, as is, in the same mode, which may result in fumes and ignition. To prevent this from occurring, always add an over voltage protection circuit. This product does not come with a test report. 5. Warranty The warranty term of the product is one year after shipment. Should the product become defective within the warranty period due to our design or workmanship, the product will be repaired free of charge or replaced. However, this warranty does not cover products which have been subjected to unauthorized inner modifications, etc. The scope of our warranty is limited to that of the said product. 6. Miscellaneous matters Any doubt arising out of or in connection with these specifications shall be determined upon mutual consultation between the parties concerned. 7. Contact If you have any further technical questions for this product, please contact us. info@bellnix.com URL: